Mary Purdy, CIA faculty, online Sustainable Food Systems Master's Degree.

Mary Purdy

Faculty Bio

Course: Sustainable Diets and Public Health.


Mary Purdy, MS, RDN is an award-winning integrative eco-dietitian and nutrition educator with a master’s degree from Bastyr University in Seattle, WA. She was in clinical practice for 13+ years using a personalized medicine and functional nutrition approach before shifting her focus to sustainability in the food system and its intersection with the climate crisis, and planetary health. In addition to being adjunct faculty with Bastyr University for eight years, she teaches and lectures for numerous universities, institutions, and professional educational platforms including the U.K.’s Future Food Movement, and presents regularly at national and state conferences on both nutrition and sustainability. She serves as the nutrition and sustainability adviser for Big Bold Health led by Dr. Jeffrey Bland, educating both practitioners and consumers about the positive impact of sustainably grown food on human and environmental health. She is also the Director or Education for the Planetary Health Collective, an organization devoted to mitigating climate change and nourishing human health by leveraging the unique role of food and nutrition professionals.

Additionally, she has hosted 125+ episodes of the podcasts The Nutrition Show and The Good Clean Nutrition Podcast highlighting trending nutrition and sustainability topics, and authored the books Serving the Broccoli Gods and The Microbiome Diet Reset. Mary is a sought-after speaker, consultant, and community builder working with organizations to create a more sustainable, just healthy, and resilient food system that can act as a major lever for addressing the climate crisis, preserving biodiversity and reducing social inequities.